APA Style

Popper, K., Petersen, A, F. (1998). The world of Parmenides : essays on the Presocratic enlightenment . : Routledge : London ; New York.

MLA Style

Popper, Karl., Petersen, Arne, F.. "The world of Parmenides : essays on the Presocratic enlightenment". : Routledge : London ; New York, 1998. Text.